1,3,4-噁二唑-2-胺

2-Methyl-3-semicarbazido-chinoxalin

2-(2-oxopropylidene)-1,5-dihydro-1,5-benzodiazepin-4-one

3-p-chlorobenzyl-2(1H)-quinoxalinone

3,4-methylenedioxybenzyl-2(1H)-quinoxalinone